import fs from 'fs';

const readStream = fs.createReadStream('./aaa.txt',{
    start:8,
    end:22,
    highWaterMark:3
});

readStream.on('data',(data)=>{
    console.log(data.toString());
    readStream.pause();
    setTimeout(()=>{
        readStream.resume();
    },2000);
});